<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
	<style type="text/css">
		 .box{
		 	width: 1200px;
		 	height: 600px;
		 	background: aqua;
		 	display: flex;
		 	flex-direction: row;
		justify-content: center;
		/*	align-items:侧轴上子元素的排列方式
				center 位于容器的中央
				flex-star 默认值 位于容器的开头
				flex-end 位于容器结尾
				baseline 基线对齐	*/
		align-items: center;
		 }
		 .box div{
		 	width: 200px;
		 	height: 100px;
/*		 	margin: 10px;*/
		 	background: pink;
		 }
	</style>
</head>
<body>
	<div class="box">
		<div>1</div>
		<div>2</div>
		<div>3</div>
		<div>4</div>
		还有3周清明
	</div>
</body>
</html>